"""/api/v1/snippets — 공용 스니펫 CRUD + 내 usage."""

import sqlite3

from django.core.management import call_command

from apps.snippets.models import Snippet


def test_crud_and_usage(auth_api, user):
    r = auth_api.post("/api/v1/snippets", {"name": " alv filter ", "desc": "ALV 필터", "body": "x", "category": ""}, format="json")
    assert r.status_code == 201 and r.json()["data"]["name"] == "ALV_FILTER" and r.json()["data"]["category"] == "코드"
    assert auth_api.post("/api/v1/snippets", {"name": "alv-filter", "desc": "d", "body": "y"}, format="json").status_code == 409  # 하이픈도 같은 이름
    assert auth_api.post("/api/v1/snippets", {"name": "", "desc": "d", "body": "y"}, format="json").status_code == 400
    assert auth_api.post("/api/v1/snippets", {"name": "BBB", "desc": "d", "body": " "}, format="json").status_code == 400
    assert auth_api.post("/api/v1/snippets", {"name": "CCC_OK", "body": "y"}, format="json").status_code == 400  # 설명 필수
    r = auth_api.post("/api/v1/snippets", {"name": "필터", "desc": "d", "body": "y"}, format="json")
    assert r.status_code == 400 and "설명" in r.json()["message"]  # 한글 이름 → 설명으로 안내
    assert auth_api.post("/api/v1/snippets", {"name": "1ABC", "desc": "d", "body": "y"}, format="json").status_code == 400

    assert auth_api.put("/api/v1/snippets/alv_filter", {"desc": " ", "body": "z"}, format="json").status_code == 400
    r = auth_api.put("/api/v1/snippets/alv_filter", {"desc": "d", "body": "z", "category": "ALV"}, format="json")
    assert r.status_code == 200 and r.json()["data"]["body"] == "z" and r.json()["data"]["category"] == "ALV"

    for _ in range(2):
        r = auth_api.post("/api/v1/snippets/ALV_FILTER/use")
    assert r.json()["data"]["usageCount"] == 2 and r.json()["data"]["lastUsed"] > 0
    lst = auth_api.get("/api/v1/snippets").json()["data"]
    assert lst[0]["name"] == "ALV_FILTER" and lst[0]["usageCount"] == 2

    assert auth_api.delete("/api/v1/snippets/ALV_FILTER").json()["data"] == {"name": "ALV_FILTER"}
    assert auth_api.get("/api/v1/snippets").json()["data"] == []


def test_usage_is_per_user(auth_api, user, django_user_model, api):
    Snippet.objects.create(name="S", body="b")
    auth_api.post("/api/v1/snippets/S/use")
    other = django_user_model.objects.create_user(username="o@x.com", email="o@x.com", password="x")
    api.force_authenticate(other)
    assert api.get("/api/v1/snippets").json()["data"][0]["usageCount"] == 0


def test_import_from_sqlite(db, tmp_path):
    p = tmp_path / "old.db"
    con = sqlite3.connect(p)
    con.execute("CREATE TABLE snippets(name TEXT PRIMARY KEY, desc TEXT, body TEXT, category TEXT)")
    con.executemany("INSERT INTO snippets VALUES (?,?,?,?)", [("a b", "d", "x", "코드"), ("EMPTY", "", "  ", "코드"), ("C", "", "y", "")])
    con.commit()
    call_command("import_snippets", str(p))
    names = {s.name: s for s in Snippet.objects.all()}
    assert set(names) == {"A_B", "C"} and names["C"].category == "코드"
    call_command("import_snippets", str(p))  # 이미 있으면 건너뜀 — 배포마다 돌아도 안전
    assert Snippet.objects.count() == 2
    Snippet.objects.create(name="LEGACY-ABAP", body="x")
    call_command("import_snippets", str(p))
    assert not Snippet.objects.filter(name="LEGACY_ABAP").exists()  # 새 규칙 이름으로 중복 생기지 않음


def test_legacy_name_still_editable(auth_api, user):
    Snippet.objects.create(name="IF_SUBRC-ABAP", desc="", body="IF sy-subrc = 0.")
    r = auth_api.put("/api/v1/snippets/IF_SUBRC-ABAP", {"desc": "sy-subrc 분기", "body": "IF sy-subrc = 0."}, format="json")
    assert r.status_code == 200 and r.json()["data"]["name"] == "IF_SUBRC-ABAP"


def test_apply_snippet_meta(db, user, tmp_path):
    from apps.snippets.models import SnippetUsage

    Snippet.objects.create(name="IF_SUBRC-ABAP", desc="", body="IF sy-subrc = 0.")
    Snippet.objects.create(name="ALV_FILTER_ROWS", desc="ALV_FILTER", body="x")   # 한글 없는 옛 설명 → 채움
    Snippet.objects.create(name="KEEP_KO", desc="이미 한글", body="x")             # 한글 설명 → 안 덮음
    Snippet.objects.create(name="TAKEN", desc="d", body="x")
    Snippet.objects.create(name="OLD_ONE", desc="", body="x")
    SnippetUsage.objects.create(snippet_id="IF_SUBRC-ABAP", user=user, count=3)
    p = tmp_path / "meta.csv"
    p.write_text(
        "\n".join([
            "name,new_name,desc",
            "IF_SUBRC-ABAP,CONTROL_IF_SUBRC_CHECK,sy-subrc 로 성공/실패 분기",
            "ALV_FILTER_ROWS,,ALV 에서 조건에 맞는 행만 필터",
            "KEEP_KO,,새 설명",
            "OLD_ONE,TAKEN,x",
            "GONE,,없는 것",
        ]),
        encoding="utf-8",
    )
    call_command("apply_snippet_meta", str(p), "--dry-run")
    assert Snippet.objects.filter(name="IF_SUBRC-ABAP").exists()  # 미리보기는 안 바꿈
    call_command("apply_snippet_meta", str(p))
    new = Snippet.objects.get(name="CONTROL_IF_SUBRC_CHECK")
    assert new.desc == "sy-subrc 로 성공/실패 분기" and not Snippet.objects.filter(name="IF_SUBRC-ABAP").exists()
    assert SnippetUsage.objects.get(snippet_id="CONTROL_IF_SUBRC_CHECK").count == 3  # 사용 기록 같이 옮김
    assert Snippet.objects.get(name="ALV_FILTER_ROWS").desc == "ALV 에서 조건에 맞는 행만 필터"
    assert Snippet.objects.get(name="KEEP_KO").desc == "이미 한글"
    assert Snippet.objects.filter(name="OLD_ONE").exists()  # 새 이름이 이미 있으면 건너뜀
    call_command("apply_snippet_meta", str(p))  # 다시 돌려도 결과 같음
    assert Snippet.objects.filter(name="CONTROL_IF_SUBRC_CHECK").count() == 1